Improved composition for covering steam-boilers and lining safes



COATING 0R PLASTIC UI'OSS HBTGIOIICE ADOLPH OTT, OF NEW YORK, N. Y.

IMPROVED COMPOSITION FOR COVERING STEAM-BOILERS AND LINING SAFES.

To all whom it may concern:

Be it known that I, ADOLPH OTT, of New York, in the county and State of New York, have invented a new and useful Covering for Steam-Boilers and Lining Safes, which 1 designate as Non-Conductive Flint Conglomerate and I hereby declare that the followiu g is a full and exact description thereof.

To enable others skilled in the art to make and use my invention, I will proceed to de I scribe it.

I I take forty pounds of fibrous gypsum, mica I or miss slate or amphibo ite of t e brous' variety; seventy-five pounds of uartz-sand, ,quartzose slate, or itacolumite; seven yve $1.? "*=pounds 0t concentrated l y e ot commerce; forty pounds of a talcose silicate, such as talcose 1]. we. vene r-,-

cate of soda of from 25, to 50 Baum, as to Zorm a plastic mass, and apply the same, with a trowel or other instrument, to the surface to be covered. It will then become dry and hard.

Specification forming part of Letters Patent No. 88,661, dated April 6, 1869.

The many advantages of this compound over others patented for the same purpose may be condensed in the following: It is composed of perfect non-conductors of heat; it consists of materials which possess a great solidifying powersome of them contain water of crystallization; it adheres with great firmness to any surface upon which it may be applied; being tenacious, it neither cracks nor blisters; it can be spread like plaster-ot paris; it neither hardens too quick nor too slow; and, finally, it is very inexpensive.

1 disclaim in my invention metallic substances, such as litharge or emery-powder, which allow heat to pass freely through them, or costly vegetable fibers, such as paperpulp or flax fiber. I also do not claim a greater quantity of quartz-sand, qnarlzose slate, or itacolumite than would enter into chemical combination; and I do not confine myself to the proportions given above; but

What I claim as my invention, and desire to secure by Letters Patent, is-

lhe compound consisting of the above materials, in any desirable proportion, substantially as herein described, and for the uses and purposes set forth.

ADOLPH ()TT.

Witnesses D. T. GARDNER, J. O. THORN.

LAullllllv 

